Clarifications
Clarification 1: Instruction begins with the use of manipulatives, models and number lines working towards becoming procedurally fluent by the end of grade 6.Clarification 2: Instruction focuses on the inverse relationship between the operations of addition and subtraction. If p and q are integers, then p-q=p+(-q) and p+q=p-(-q).
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Formative Assessments
Lesson Plan
Original Student Tutorial
MFAS Formative Assessments
Students are asked to describe an example of additive inverse and demonstrate the concept on a number line.
Students are asked to find the difference between two integers using a number line.
Students are asked to rewrite a subtraction problem as an equivalent addition problem and explain the equivalence using a number line.
Original Student Tutorials Mathematics - Grades 6-8
Learn how to explain the meaning of additive inverse, identify the additive inverse of a given rational number, and justify your answer on a number line in this original tutorial.
Student Resources
Original Student Tutorial
Learn how to explain the meaning of additive inverse, identify the additive inverse of a given rational number, and justify your answer on a number line in this original tutorial.
Type: Original Student Tutorial